<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>透明背景蓝光球体</title>
    <style>
        body {
            background: transparent; /* 完全透明背景 */
            min-height: 100vh;
            margin: 0;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .wrapper {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .row {
            display: flex;
            gap: 30px;
            justify-content: center;
        }

        .sphere {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: radial-gradient(
                circle at 30% 30%,
                #e0f7ff,
                #0099cc 60%,
                #005580 90%
            );
            box-shadow: 
                0 0 25px rgba(0, 153, 204, 0.5),
                0 0 50px rgba(0, 153, 204, 0.3), /* 增强发光可见性 */
                inset 3px 3px 10px rgba(255, 255, 255, 0.5);
            position: relative;
            border: 1px solid rgba(0, 153, 204, 0.2);
        }

        .sphere::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            top: 5%;
            left: 10%;
            background: radial-gradient(
                circle at 50% 50%,
                rgba(255, 255, 255, 0.95) 0%,
                rgba(255, 255, 255, 0) 70%
            );
            filter: blur(5px);
        }
    </style>
</head>
<body>
    <div class="wrapper">
        <div class="row">
            <div class="sphere"></div>
            <div class="sphere"></div>
            <div class="sphere"></div>
        </div>
        <div class="row">
            <div class="sphere"></div>
            <div class="sphere"></div>
        </div>
    </div>
</body>
</html>